In PHP 3.0 boolean evaluation is short-circuited. This means that
in an expression like (1 || test_me()), the
function test_me() would not be executed since
nothing can change the result of the expression after the
1.
This is a minor compatibility issue, but may cause unexpected
side-effects.
User Contributed Notes Short-circuited boolean evaluation
php at cotest dot com
17-Jul-2002 01:13
"Short-circuiting" is often called "lazy evaluation," too.
Error messages have changed
